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SIST EN 303-3:1999

(Main)

Heating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner

Heating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner

This European Standard specifies the requirements and test methods for the construction, the safety and the rational energy usage of an assembly made up of a boiler body complying with EN 303- 11) and a forced draught gas burner complying with EN 676, using combustible gases, hereafter referred to as a "boiler".  This European Standard applies to a boiler:  - with a nominal output not exceeding 1 000 kW.  This European Standard does not contain all the necessary requirements for:  - assemblies designed as units;  - condensing boilers and low temperature boilers;  - boilers intended to be installed in the open;  - boilers permanently fitted with more than one flue outlet;  - boilers fitted with a draught diverter;  -  boilers intended to be connected to a common flue having mechanical    extraction.  This European Standard does not apply to living-space dedicated boilers   If the boiler body has already been tested with a liquid fuel burner, in accordance with EN 303-1, EN 303-2 and EN 304, only the tests described in annex G need to be performed.  In the case of a range of boilers, see annex F.  This European Standard does not contain all the necessary requirements for low temperature boilers. Nevertheless, the testing methods defined by this European Standard for the determination of useful efficiencies can be used for low temperature boilers, after being adapted in accordance with annex H.  This European Standard only covers type testing.

Heizkessel - Teil 3: Zentralheizkessel für gasförmige Brennstoffe - Zusammenbau aus Kessel und Gebläsebrenner

Diese Europäische Norm legt die Anforderungen und Prüfungen für die Sicherheit, die Gebrauchsgüte und den sparsamen Energieeinsatz von Zusammenbauten, bestehend aus einem Kesselkörper gemäß den Anforderungen von prEN 303-1 und einem Gasgebläsebrenner gemäß EN 676 - nachfolgend als Kessel bezeichnet - fest.

Chaudieres de chauffage - Partie 3: Chaudieres de chauffage central utilisant les combustibles gazeux - Assemblage d'un corps de chaudiere et d'un bruleur a air soufflé

La présente norme européenne spécifie les exigences et les méthodes d'essais relatives a la construction, la sécurité et l'utilisation rationnelle de l'énergie d'un assemblage constitué d'un corps de chaudiere conforme au projet de norme prEN 303-1 et d'un bruleur a air soufflé conforme a l'EN 676 utilisant les combustibles gazeux, appelé ci-apres "chaudiere".

Kotli za ogrevanje - 3. del: Plinski kotli za centralno ogrevanje – Sestava kotla in ventilatorskega gorilnika

General Information

Status
Published
Publication Date
30-Nov-1999
ICS
91.140.10 - Central heating systems
97.100.20 - Gas heaters
Technical Committee
PLN - Gas appliances for domestic use
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Dec-1999
Due Date
01-Dec-1999
Completion Date
01-Dec-1999
Directive
2009/142/EC - DIRECTIVE 2009/142/EC OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 30 November 2009 relating to appliances burning gaseous fuels
2016/426 - REGULATION (EU) 2016/426 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 9 March 2016 on appliances burning gaseous fuels and repealing Directive 2009/142/EC
90/396/EEC - Appliances burning gaseous fuels
92/42/EEC - Efficiency requirements for new hot-water boilers fired with liquid or gaseous fuels
Mandate
M/066 - Standardization mandate to CEN concerning Efficiency requirements for boilers
M/BC/CEN/89/6 - Standardization request to CEN concerning appliances burning gaseous fuels
Ref Project
EN 303-3:1998 - Heating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner

Relations

Amended By
SIST EN 303-3:1999/A2:2004 - Heating Boilers - Part 3 : Gas-fired heating boilers - Assembly comprising a boiler body and a forced draught burner
Effective Date
01-Jun-2004
Corrected By
SIST EN 303-3:1999/AC:2006 - Heating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner
Effective Date
01-Sep-2006

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kotli za ogrevanje - 3. del: Plinski kotli za centralno ogrevanje – Sestava kotla in ventilatorskega gorilnikaHeizkessel - Teil 3: Zentralheizkessel für gasförmige Brennstoffe - Zusammenbau aus Kessel und GebläsebrennerChaudieres de chauffage - Partie 3: Chaudieres de chauffage central utilisant les combustibles gazeux - Assemblage d'un corps de chaudiere et d'un bruleur a air souffléHeating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner97.100.20Plinski grelnikiGas heaters91.140.10Sistemi centralnega ogrevanjaCentral heating systemsICS:Ta slovenski standard je istoveten z:EN 303-3:1998SIST EN 303-3:1999en01-december-1999SIST EN 303-3:1999SLOVENSKI
STANDARD



SIST EN 303-3:1999



SIST EN 303-3:1999



SIST EN 303-3:1999



SIST EN 303-3:1999



SIST EN 303-3:1
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e) which are declared in the instructions for installation to be either a "condensing" boiler or a "low temperature boiler" or a "standard boiler" or an "other boiler". If no declaration is given the boiler is to be considered both a "standard boiler" and an "other boiler";
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This European Standard applies to boilers of type B, as listed in 4.2:
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3   intended to be installed in the open or in living rooms;
3   permanently fitted with more than one flue outlet;
3   where the combustion circuit is sealed with respect to the room where the boiler is installed;
3   of the condensing type;
3   intended to be connected to a common flue having mechanical extraction;
3   fitted with a forced draught burner in accordance with EN 676 (see EN 303-7);
3   producing hot water for domestic purposes.
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SIST EN 656:2001/A1:2006(Amendment)
Gas-fired central heating boilers - Type B boilers of nominal heat input exceeding 70 kW, but not exceeding 300 kW
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Add to the first list of indents:
-   of the standard type possibly producing condensation in certain circumstances;
-   of the low-temperature type;"
Delete in the second list of indents:
-   of the low-temperature type;

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SIST EN 303-3:1999/AC:2006(Amendment)
Heating boilers - Part 3: Gas-fired central heating boilers - Assembly comprising a boiler body and a forced draught burner
EN 303-3:1998/AC:2006

TC - Replace Tables 5 and 6

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SIST EN 303-3:1999/A2:2004(Amendment)
Heating Boilers - Part 3 : Gas-fired heating boilers - Assembly comprising a boiler body and a forced draught burner
EN 303-3:1998/A2:2004

Replace the second paragraph by the following text :
"This European Standard applies to standard boilers and low-temperature boilers with a nominal heat output not exceeding 1000 kW and with a water temperature at normal operation not exceeding 105 °C."
Replace the 2nd dash of the third paragraph by the following text :
"- condensing boilers;"
Delete the last but one paragraph of EN 303-3 :
"This European Standard does not contain all the necessary requirements for low temperature boilers. Nevertheless, the testing methods defined by this European Standard for the determination of useful efficiencies can be used for low temperature boilers, after being adapted in accordance with annex H."

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SIST EN 656:2001(Main)
Gas-fired central heating boilers - Type B boilers of nominal heat input exceeding 70 kW but not exceeding 300 kW
EN 656:1999

This standard specifies the requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of gas-fired central heating boilers that are fitted with atmospheric burners, fan assisted atmospheric burners or fully premixed burners, and are hereafter referred to as "boilers".  This standard applies to boilers of type B, as listed in 4.2:   ? that use one or more combustible gases of the three gas families at the pressures stated in Tables 14 and 15;  ? that have a nominal heat input (net CV basis) exceeding 70 kW, but not exceeding 300 kW, including modular boilers;  ? where the temperature of the heat transfer fluid does not exceed 105 oC during normal operation;  ? where the maximum operating pressure in the water circuit does not exceed 6 bar.  The standard applies to boilers designed for sealed water systems or for open water systems.  The standard does not contain all the requirements necessary for boilers:   ? intended to be installed in the open or in living rooms;  ? permanently fitted with more than one flue outlet;  ? where the combustion circuit is sealed with respect to the room where the boiler is installed;  ? of the condensing type;  ? of the low temperature type;  ? intended to be connected to a common flue having mechanical extraction;  ? fitted with a forced draught burner in accordance with EN 676;  ? producing hot water for domestic purposes.  This standard only covers type testing.

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kSIST FprEN 15502-2-3:2023(Main)
Gas-fired central heating boilers - Part 2-3: Specific standard for hybrid units combining a gas fired boiler and an electrical heat pump in a product
EN 15502-2-3:2023

This document specifies, the requirements and tests methods concerning, in particular, the construction, safety, fitness for purpose, and rational use of energy, as well as the classification and marking of hybrid products.
The hybrid product is composed by:
-   a gas boiler as heat generator which could supply the heat demand in all operating conditions;
-   an electrical heat pump, as heat generator, which has not to fulfil the heat demand in all operating conditions;
-   a control unit (see definition 3.10).
The gas boiler as part of the hybrid product covered by this document is a gas-fired central heating boilers from the types C1 up to C9 and the types B2, B3 and B5, according to the classification in EN 1749:2020:
a)   that have a nominal heat input (on the basis of gross calorific value) not exceeding 400 kW;
b)   that use one or more combustible gases of the three gas families at the pressures stated in EN 437;
c)   where the temperature of the heat transfer fluid does not exceed 105 °C during normal operation;
d)   where the maximum operating pressure in the water circuit does not exceed 6 bar;
e)   which shall be classified as gas boiler;
f)   which are intended to be installed either indoors or outdoors in a partially protected place;
g)   which may include the facility to produce hot water, either by the instantaneous or storage principle, the whole being marketed as a single unit;
h)   which are designed for either sealed water systems or for open water systems.
This document provides requirements for boilers with known constructions. For boilers with any alternative constructions, which might not fully be covered by this document, the risk associated with this alternative construction needs to be assessed.
An example of an assessment methodology, based upon risk assessment and which covers the essential requirements of the Gas Appliance Regulation UE/426/2016, is given in Clause 11.
This document does not cover all the requirements for:
Appliances that are intended to be connected to gas grids where the quality of the distributed gas is likely to vary to a large extent over the lifetime of the appliance (see Annex DD);
a)   appliances using flue dampers;
b)   appliances of the types B21, B31, B51, C21, C41, C51, C61, C71 and C81;
c)   appliances incorporating flexible plastic flue liners;
d)   appliances designed to become connected to a combined flue duct system that is designed to operate under overpressure (for example Ca)).
This document specifies minimum operating requirements which ensure that the products are fit for the use designated by the manufacturer when used for space heating and/or DHW production.
This part specifies the common requirements and test methods concerning, in particular the construction, safety, fitness for purpose, and rational use of energy.
This document is to be used in conjunction with:
a)   the gas fired boiler, the generic part EN 15502-1 and specific Part 2-1 and Part 2-2.
b)   the electrical heat pump, EN 14511-4:2018, EN 378-1:2016 to EN 378-4:2016+A1:2019 and FprEN 14825:2020.
c)   electrical safety, EN 60335-1:2019, EN 60335-2-102:2016, EN 60335-2-40:2012, EN 60335-2-40/A2:2009 and EN 60204-1.
d)   for domestic hot water production, EN 13203-5.

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